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Lynne ed2391d341 ffv1enc: add a Vulkan encoder This commit implements a standard, compliant, version 3 and version 4 FFv1 encoder, entirely in Vulkan. The encoder is written in standard GLSL and requires a Vulkan 1.3 supporting GPU with the BDA extension. The encoder can use any amount of slices, but nominally, should use 32x32 slices (1024 in total) to maximize parallelism. All features are supported, as well as all pixel formats. This includes: - Rice - Range coding with a custom quantization table - PCM encoding CRC calculation is also massively parallelized on the GPU. Encoding of unaligned dimensions on subsampled data requires version 4, or requires oversizing the image to 64-pixel alignment and cropping out the padding via container flags. Performance-wise, this makes 1080p real-time screen capture possible at 60fps on even modest GPUs.		2024-11-18 07:54:22 +01:00
compat	…
doc	avformat/dvdvideodec: remove auto value for menu_lu option	2024-11-16 14:40:51 -06:00
ffbuild	…
fftools	fftools/ffplay: fix crash when vk renderer is null	2024-11-06 16:34:02 +08:00
libavcodec	ffv1enc: add a Vulkan encoder	2024-11-18 07:54:22 +01:00
libavdevice	avdevice/dshow: fix unused variable warning	2024-10-17 13:04:17 +02:00
libavfilter	avfilter/f_loop: fix aloop activate logic	2024-11-11 21:56:34 +01:00
libavformat	avformat/dvdvideodec: don't allow seeking beyond dvdnav reported duration	2024-11-16 14:40:51 -06:00
libavutil	hwcontext_vulkan: add the mapped software frame as an upload dependency	2024-11-18 07:54:20 +01:00
libpostproc	…
libswresample	…
libswscale	sws/range_convert: fix RISC-V chrFromJpeg	2024-11-17 11:28:21 +02:00
presets	…
tests	checkasm: add RISC-V vector width to arch info	2024-11-17 11:28:21 +02:00
tools	enc_recon_frame_test: don't print an error on EOF.	2024-11-13 09:26:22 -05:00
.gitattributes	…
.gitignore	.gitignore: add exclusions for shader .c files	2024-11-18 07:54:21 +01:00
.mailmap	…
CONTRIBUTING.md	…
COPYING.GPLv2	…
COPYING.GPLv3	…
COPYING.LGPLv2.1	…
COPYING.LGPLv3	…
CREDITS	…
Changelog	lavc: deprecate the omx encoders	2024-11-09 02:46:17 +01:00
INSTALL.md	INSTALL: explain the circular dependency issue and solution	2024-11-03 19:35:23 +01:00
LICENSE.md	…
MAINTAINERS	MAINTAINERS: remove arpi	2024-11-13 02:15:59 +10:00
Makefile	…
README.md	…
RELEASE	…
configure	ffv1enc: add a Vulkan encoder	2024-11-18 07:54:22 +01:00

README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

libavcodec provides implementation of a wider range of codecs.
libavformat implements streaming protocols, container formats and basic I/O access.
libavutil includes hashers, decompressors and miscellaneous utility functions.
libavfilter provides means to alter decoded audio and video through a directed graph of connected filters.
libavdevice provides an abstraction to access capture and playback devices.
libswresample implements audio mixing and resampling routines.
libswscale implements color conversion and scaling routines.

Tools

ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
ffplay is a minimalistic multimedia player.
ffprobe is a simple analysis tool to inspect multimedia content.
Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.